Reffly: Spelregels oefenen

Name: Reffly: Spelregels oefenen
Author: Zeb Koppes

By: Zeb Koppes App

Practice the football rules with smart repetition. 300 questions with explanations.

Overview

Google Play Store

Downloads

264 ▲ 13

Data as of 2026-10-20

Version:

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Last updated: 2026-09-03

Ranking

#1,666,408 ▲ 10,744

Overall

Features & Capabilities

Reffly helps you, as a referee, master the rules of field football. Not by reading through a list, but by practicing with questions that reappear precisely when you are about to forget them.

SMART REPETITION

Every question is in one of five boxes. If you get it right, it moves up and you will see it again later. Wrong, it comes back quickly. This way, you spend your time on what you don't know yet, instead of what you already know.

EXPLANATION WITH EVERY ANSWER

Knowing that you were wrong doesn't help. Knowing why does. The reasoning is included with every question, and where it matters, the nuance that makes the difference between two answers that both seem correct.

THE CHANGES FOR 2026/2027

All rule changes for the new season listed, by rule, along with what applied previously. You can practice on them individually, and you can switch between amateur and professional football so that you only see what applies to you.

AT YOUR LEVEL

Do you referee in a district, at your own club, or nationally? You will receive the questions relevant to that. We omit questions relevant to districts or clubs that only apply to professional football.

SEE YOUR KNOWLEDGE GROW

Your progress runs from new to learning to mastery. Statistics show which topics are lagging behind, so you know where the gains are. And there are achievements to be made, from your first clean sheet to mastering all twenty-five topics.

HASSLE-FREE

No ads. No subscription. You can start immediately without an account. If you want to transfer your progress to another device, create a free account using only your email address, without a password.

The app works without an internet connection.

ABOUT THE QUESTIONS

The questions come from the rules documents that the KNVB publishes publicly every year. The explanations are ours. Reffly is an independent practice app and is not affiliated with the KNVB or the IFAB. In case of doubt, the official rules always apply. Questions or found something that isn't right? Email info@zebkoppes.com.